EL2044 ® Data Sheet Low Power/Low Voltage 120MHz UnityGain Stable Operational Amplifier The EL2044 is a high speed, low power, low cost monolithic operational amplifier built on Elantec's proprietary complementary bipolar process. The EL2044 is unity-gain stable and features a 325V/µs slew rate and 120MHz gainbandwidth product while requiring only 5.2mA of supply current. The power supply operating range of the EL2044 is from ±18V down to as little as ±2V. For single-supply operation, the EL2044 operates from 36V down to as little as 2.5V. The excellent power supply operating range of the EL2044 makes it an obvious choice for applications on a single +5V supply. The EL2044 also features an extremely wide output voltage swing of ±13.6V with VS = ±15V and RL = 1kΩ. At ±5V, output voltage swing is a wide ±3.8V with RL = 500Ω and ±3.2V with RL = 150Ω. Furthermore, for single-supply operation at +5V, output voltage swing is an excellent 0.3V to 3.8V with RL = 500Ω. August 16, 2004 Features • Pb-free available • 120MHz -3dB bandwidth • Unity-gain stable • Low supply current - 5.2mA @VS = ±15V • Wide supply range - ±2V to ±18V dual-supply and 2.5V to 36V single-supply • High slew rate = 325V/µs • Fast settling - 80ns to 0.1% for a 10V step • Low differential gain - 0.04% at AV = +2, RL = 150Ω • Low differential phase - 0.15° at AV = +2, RL = 150Ω • Wide output voltage swing - ±13.6V with VS = ±15V, RL = 1kΩ and 3.8V/0.3V with VS = +5V, RL = 500Ω • Low cost, enhanced replacement for the AD847 and LM6361 Applications • Video amplifiers At a gain of +1, the EL2044 has a -3dB bandwidth of 120MHz with a phase margin of 50°. Because of its conventional voltage-feedback topology, the EL2044 allows the use of reactive or non-linear elements in its feedback network. This versatility combined with low cost and 75mA of output-current drive makes the EL2044 an ideal choice for price-sensitive applications requiring low power and high speed. • Single-supply amplifiers The EL2044 is available in the 8-pin SO and 8-pin PDIP packages and operates over the full -40°C to +85°C temperature range. • Pin diode receivers Ordering Information • Photo multiplier amplifiers TAPE & REEL PKG. DWG. # EL2044CS 8-Pin SO - MDP0027 EL2044CSZ (See Note) 8-Pin SO (Pb-free) - MDP0027 EL2044CS-T7 8-Pin SO 7” MDP0027 EL2044CSZ-T7 (See Note) 8-Pin SO (Pb-free) 7” MDP0027 • High speed sample-and-hold • High speed signal processing • ADC/DAC buffers • Pulse/RF amplifiers • Log amplifiers Pinout EL2044 (8-PIN SO & 8-PIN PDIP) TOP VIEW NC 1 EL2044CS-T13 8-Pin SO 13” MDP0027 EL2044CSZT13 (See Note) 8-Pin SO (Pb-free) 13” MDP0027 8-Pin PDIP - MDP0031 EL2044CN • Active filters/integrators • Difference amplifiers PACKAGE PART NUMBER FN7029.1 NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J Std-020B. 1 IN- 2 IN+ 3 V- 4 8 NC + 7 V+ 6 OUT 5 NC CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners. EL2044 Absolute Maximum Ratings (TA = 25°C) Supply Voltage (VS). . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V or 36V Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS Differential Input Voltage (dVIN) . . . . . . . . . . . . . . . . . . . . . . . .±10V Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA Power Dissipation (PD) . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Operating Temperature Range (TA) . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . +150°C Storage Temperature (TST). . . . . . . . . . . . . . . . . . .-65°C to +150°C CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA DC Electrical Specifications PARAMETER VOS VS = ±15V, RL = 1kΩ, unless otherwise specified. DESCRIPTION Input Offset Voltage CONDITION VS = ±15V TEMP MIN 25°C TYP MAX UNIT 0.5 7.0 mV 13.0 mV TMIN, TMAX TCVOS Average Offset Voltage Drift IB Input Bias Current VS = ±15V All 10.0 25°C 2.8 TMIN, TMAX IOS Input Offset Current VS = ±5V 25°C 2.8 VS = ±15V 25°C 50 TMIN, TMAX VS = ±5V TCIOS Average Offset Current Drift (Note 1) AVOL Open-loop Gain VS = ±15V,VOUT = ±10V, RL = 1kΩ PSRR CMRR CMIR VOUT ISC Power Supply Rejection Ratio Output Voltage Swing Output Short Circuit Current 2 8.2 µA 11.2 µA µA 300 nA 500 nA 25°C 50 nA All 0.3 nA/°C 1500 V/V 25°C 800 TMIN, TMAX 600 V/V VS = ±5V, VOUT = ±2.5V, RL = 500Ω 25°C 1200 V/V VS = ±5V, VOUT = ±2.5V, RL = 150Ω 25°C 1000 V/V VS = ±5V to ±15V 25°C 65 80 dB TMIN, TMAX 60 25°C 70 TMIN, TMAX 70 Common-mode Rejection Ratio VCM = ±12V, VOUT = 0V Common-mode Input Range µV/°C dB 90 dB dB VS = ±15V 25°C ±14.0 V VS = ±5V 25°C ±4.2 V VS = +5V 25°C 4.2/0.1 V VS = ±15V, RL = 1kΩ 25°C ±13.4 ±13.6 V TMIN, TMAX ±13.1 VS = ±15V, RL = 500Ω 25°C ±12.0 ±13.4 V VS = ±5V, RL = 500Ω 25°C ±3.4 ±3.8 V VS = ±5V, RL = 150Ω 25°C ±3.2 V VS = +5V, RL = 500Ω 25°C 3.6/0.4 3.8/0.3 V TMIN, TMAX 3.5/0.5 25°C 40 TMIN, TMAX 35 V V 75 mA mA EL2044 DC Electrical Specifications PARAMETER IS VS = ±15V, RL = 1kΩ, unless otherwise specified. (Continued) DESCRIPTION Supply Current CONDITION VS = ±15V, no load TEMP MIN 25°C TYP MAX UNIT 5.2 7 mA 7.6 mA TMIN, TMAX RIN Input Resistance VS = ±5V, no load 25°C 5.0 mA Differential 25°C 150 kΩ Common-mode 25°C 15 MΩ CIN Input Capacitance AV = +1 @10MHz 25°C 1.0 pF ROUT Output Resistance AV = +1 25°C 50 mΩ PSOR Power-supply Operating Range Dual-supply Single-supply 25°C ±2.0 ±18.0 V 25°C 2.5 36.0 V NOTE: 1. Measured from TMIN to TMAX. Closed-Loop AC Electrical Specifications PARAMETER BW GBWP VS = ±15V, AV = +1, RL = 1kΩ unless otherwise specified. DESCRIPTION CONDITION TEMP MIN TYP MAX UNIT -3dB Bandwidth (VOUT = 0.4VPP) VS = ±15V, AV = +1 25°C 120 MHz VS = ±15V, AV = -1 25°C 60 MHz VS = ±15V, AV = +2 25°C 60 MHz VS = ±15V, AV = +5 25°C 12 MHz VS = ±15V, AV = +10 25°C 6 MHz VS = ±5V, AV = +1 25°C 80 MHz VS = ±15V 25°C 60 MHz VS = ±5V 25°C 45 MHz 50 ° 325 V/µs 200 V/µs 5.2 MHz Gain-bandwidth Product PM Phase Margin RL = 1 kΩ, CL = 10 pF 25°C SR Slew Rate (Note 1) VS = ±15V, RL = 1kΩ 25°C VS = ±5V, RL = 500Ω 25°C VS = ±15V 25°C VS = ±5V 25°C 12.7 MHz FPBW Full-power Bandwidth (Note 2) 250 4.0 tR, tF Rise Time, Fall Time 0.1V Step 25°C 3.0 ns OS Overshoot 0.1V Step 25°C 20 % tPD Propagation Delay 25°C 2.5 ns tS Settling to +0.1% (AV = +1) 25°C 80 ns 60 ns VS = ±15V, 10V step VS = ±5V, 5V step dG Differential Gain (Note 3) NTSC/PAL 25°C 0.04 % dP Differential Phase NTSC/PAL 25°C 0.15 ° eN Input Noise Voltage 10kHz 25°C 15.0 nV/√Hz iN Input Noise Current 10kHz 25°C 1.50 pA/√Hz NOTES: 1. Slew rate is measured on rising edge. 2. For VS = ±15V, VOUT = 20VPP. For VS = ±5V, VOUT = 5VPP. Full-power bandwidth is based on slew rate measurement using: FPBW = SR / (2π * Vpeak). 3. Video performance measured at VS = ±15V, AV = +2 with 2 times normal video level across RL = 150Ω. This corresponds to standard video levels across a back-terminated 75Ω load. For other values of RL, see curves. 3 EL2044 Typical Performance Curves Non-Inverting Frequency Response Inverting Frequency Response Frequency Response for Various Load Resistances Open-Loop Gain and Phase vs Frequency Output Voltage Swing vs Frequency Equivalent Input Noise 2nd and 3rd Harmonic Distortion vs Frequency Settling Time vs Output Voltage Change CMRR, PSRR and ClosedLoop Output Resistance vs Frequency Supply Current vs Supply Voltage 4 Common-Mode Input Range vs Supply Voltage Output Voltage Range vs Supply Voltage EL2044 Typical Performance Curves (Continued) Gain-Bandwidth Product vs Supply Voltage Open-Loop Gain vs Supply Voltage Slew-Rate vs Supply Voltage Bias and Offset Current vs Input Common-Mode Voltage Open-Loop Gain vs Load Resistance Voltage Swing vs Load Resistance Offset Voltage vs Temperature Bias and Offset Current vs Temperature Supply Current vs Temperature Gain-Bandwidth Product vs Temperature Open-Loop Gain PSRR and CMRR vs Temperature Slew Rate vs Temperature 5 EL2044 Typical Performance Curves (Continued) Short-Circuit Current vs Temperature Small-Signal Step Response Differential Gain and Phase vs DC Input Offset at 3.58MHz Short-Circuit Current Large-Signal Differential Gain and Phase vs DC Input Offset at 4.43MHz Differential Gain and Phase vs Number of 150Ω Loads at 3.58MHz Differential Gain and Phase vs Number of 150Ω Loads at 4.43MHz Gain-Bandwidth Product vs Load Capacitance Gain-Bandwidth Product (MHz) 70 60 50 40 30 20 10 VS=±15V AV=-2 0 1 10 100 1k 10k Load Capacitance (pF) Package Power Dissipation vs Ambient Temperature JEDEC JESD51-3 Low Effective Thermal Conductivity Test Board 35 1.4 30 1.2 1.25W Power Dissipation (W) Overshoot (%) Overshoot vs Load Capacitance 25 20 15 10 5 VS=±15V RG=open 0 5 10 θ JA = 1 0.8 781mW 0.6 PD IP 8 10 0° C/ W θJ A =1 0.4 SO 8 60 °C /W 0.2 15 20 25 Load Capacitance (pF) 6 30 35 0 0 25 50 75 85 100 Ambient Temperature (°C) 125 150 EL2044 Simplified Schematic Burn-In Circuit ALL PACKAGES USE THE SAME SCHEMATIC Applications Information Product Description The EL2044 is a low-power wideband monolithic operational amplifier built on Elantec's proprietary high-speed complementary bipolar process. The EL2044 uses a classical voltage-feedback topology which allows it to be used in a variety of applications where current-feedback amplifiers are not appropriate because of restrictions placed upon the feedback element used with the amplifier. The conventional topology of the EL2044 allows, for example, a capacitor to be placed in the feedback path, making it an excellent choice for applications such as active filters, 7 sample-and-holds, or integrators. Similarly, because of the ability to use diodes in the feedback network, the EL2044 is an excellent choice for applications such as fast log amplifiers. Single-Supply Operation The EL2044 has been designed to have a wide input and output voltage range. This design also makes the EL2044 an excellent choice for single-supply operation. Using a single positive supply, the lower input voltage range is within 100mV of ground (RL = 500Ω), and the lower output voltage range is within 300mV of ground. Upper input voltage range reaches 4.2V, and output voltage range reaches 3.8V with a EL2044 5V supply and RL = 500Ω. This results in a 3.5V output swing on a single 5V supply. This wide output voltage range also allows single-supply operation with a supply voltage as high as 36V or as low as 2.5V. On a single 2.5V supply, the EL2044 still has 1V of output swing. Gain-Bandwidth Product and the -3dB Bandwidth The EL2044 has a gain-bandwidth product of 60MHz while using only 5.2mA of supply current. For gains greater than 4, its closed-loop -3dB bandwidth is approximately equal to the gain-bandwidth product divided by the noise gain of the circuit. For gains less than 4, higher-order poles in the amplifier's transfer function contribute to even higher closed loop bandwidths. For example, the EL2044 has a -3dB bandwidth of 120MHz at a gain of +1, dropping to 60MHz at a gain of +2. It is important to note that the EL2044 has been designed so that this “extra” bandwidth in low-gain applications does not come at the expense of stability. As seen in the typical performance curves, the EL2044 in a gain of +1 only exhibits 1.0dB of peaking with a 1kΩ load. Video Performance An industry-standard method of measuring the video distortion of a component such as the EL2044 is to measure the amount of differential gain (dG) and differential phase (dP) that it introduces. To make these measurements, a 0.286VPP (40 IRE) signal is applied to the device with 0V DC offset (0 IRE) at either 3.58MHz for NTSC or 4.43MHz for PAL. A second measurement is then made at 0.714V DC offset (100 IRE). Differential gain is a measure of the change in amplitude of the sine wave, and is measured in percent. Differential phase is a measure of the change in phase, and is measured in degrees. For signal transmission and distribution, a back-terminated cable (75Ω in series at the drive end, and 75Ω to ground at the receiving end) is preferred since the impedance match at both ends will absorb any reflections. However, when double termination is used, the received signal is halved; therefore a gain of 2 configuration is typically used to compensate for the attenuation. The EL2044 has been designed as an economical solution for applications requiring low video distortion. It has been thoroughly characterized for video performance in the topology described above, and the results have been included as typical dG and dP specifications and as typical performance curves. In a gain of +2, driving 150Ω, with standard video test levels at the input, the EL2044 exhibits dG and dP of only 0.04% and 0.15° at NTSC and PAL. Because dG and dP can vary with different DC offsets, the video performance of the EL2044 has been characterized over the entire DC offset range from -0.714V to +0.714V. For more information, refer to the curves of dG and dP vs DC Input Offset. The output drive capability of the EL2044 allows it to drive up to 2 back-terminated loads with good video performance. 8 For more demanding applications such as greater output drive or better video distortion, a number of alternatives such as the EL2120, EL400, or EL2073 should be considered. Output Drive Capability The EL2044 has been designed to drive low impedance loads. It can easily drive 6VPP into a 150Ω load. This high output drive capability makes the EL2044 an ideal choice for RF, IF and video applications. Furthermore, the current drive of the EL2044 remains a minimum of 35mA at low temperatures. Printed-Circuit Layout The EL2044 is well behaved, and easy to apply in most applications. However, a few simple techniques will help assure rapid, high quality results. As with any high-frequency device, good PCB layout is necessary for optimum performance. Ground-plane construction is highly recommended, as is good power supply bypassing. A 0.1µF ceramic capacitor is recommended for bypassing both supplies. Lead lengths should be as short as possible, and bypass capacitors should be as close to the device pins as possible. For good AC performance, parasitic capacitances should be kept to a minimum at both inputs and at the output. Resistor values should be kept under 5kΩ because of the RC time constants associated with the parasitic capacitance. Metal-film and carbon resistors are both acceptable, use of wire-wound resistors is not recommended because of their parasitic inductance. Similarly, capacitors should be low-inductance for best performance. The EL2044 Macromodel This macromodel has been developed to assist the user in simulating the EL2044 with surrounding circuitry. It has been developed for the PSPICE simulator (copywritten by the Microsim Corporation), and may need to be rearranged for other simulators. It approximates DC, AC, and transient response for resistive loads, but does not accurately model capacitive loading. This model is slightly more complicated than the models used for low-frequency op-amps, but it is much more accurate for AC analysis. The model does not simulate these characteristics accurately: • Noise • Settling time • Non-linearities • Temperature effects • Manufacturing variations • CMRR • PSRR EL2044 EL2044 Macromodel IN+IN+IN+IN+IN+IN+NININININ * Connections: +input * | -input * | | +Vsupply * | | | -Vsupply * | | | | output * | | | | | .subckt M2044 3 2 7 4 6 * * Input stage * ie 7 37 1mA r6 36 37 800 r7 38 37 800 rc1 4 30 850 rc2 4 39 850 q1 30 3 36 qp q2 39 2 38 qpa ediff 33 0 39 30 1.0 rdiff 33 0 1Meg * * Compensation Section * ga 0 34 33 0 1m rh 34 0 2Meg ch 34 0 1.3pF rc 34 40 1K cc 40 0 1pF * * Poles * ep 41 0 40 0 1 rpa 41 42 200 cpa 42 0 1pF rpb 42 43 200 cpb 43 0 1pF * * Output Stage * ios1 7 50 1.0mA ios2 51 4 1.0mA q3 4 43 50 qp q4 7 43 51 qn q5 7 50 52 qn q6 4 51 53 qp ros1 52 6 25 ros2 6 53 25 * * Power Supply Current * ips 7 4 2.7mA * IN+IN+IN+IN+IN+IN+NININININ * Models * .model qn npn(is=800E-18 bf=200 tf=0.2nS) .model qpa pnp(is=864E-18 bf=100 tf=0.2nS) .model qp pnp(is=800E-18 bf=125 tf=0.2nS) .ends 9 EL2044 EL2044 Macromodel (Continued) All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 10